Improvement in locks for sliding doors



W. C. ROGERS.

LOCKS FOR SLIDING DOORS. v No. 189,061. Patented Apri1 3,187 7.

Wrruzssas. INVENTOR,

w@- W 7Z4 57 Y Ma /Z N- PETERS, PHOTO-LIi'NOGRAPHER, WASHINGTON D ISTATES PATENT OFFICE.

WILLIAM 0. ROGERS, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN LOCKS FOR SLIDING DOORS.

Specification forming part of Letters Patent No. 159.061, dated April 3,1877 application filed April 17, 1876.

To all whom it may concern Be it known that I, WILLIAM 0. ROGERS. ofChicago, in the county of Cook and State of Illinois, have invented anew and useful Improvement in Looks for Sliding Doors, which improvementis fully set forth in the following specification, reference being hadto the accompanying drawings.

The object of my invention is to provide a lock for sliding doors, witha sliding pull, havin g a shoulder near its lower front corner, forengaging with the face-plate when forced in, and a spring for throwingsaid pull outward when released from its engagement, the releasing ofthe said pull being effected by pressure applied to its upper frontcorner.

The sliding pull A, Figure 7, is provided at its inner end with a slot,a, for the reception of a guide-pin, a, which pin serves to guide saidpull in its motion when thrown out and back. When thrown forward by thespring K, for receiving the open hand or fingers, it enables theoperator to pull the door out of the casing by the force applied to thesaid pull, when the door may be more fully closed by the application ofpower to the flush cups D, Fig.1, which make their appearance on bothsides of the door as soon as out of the casing by the use of said pull.Said pull is prevented from being pulled out of said plates whileapplying the power to close the door by a bar cast onto the parallelsides of the slot a at the rear end, behind the fixed guide-post in slotat This said pull A is also guided and held firmly by a slot in thefront plate, which fits loosely the four parallel sides of the forwardportion of said pull. The said spring at the rear end of said pollalways presses upon the said pull upon the rear upper corner, whichassists in catching the lower front corner behind the front plate.

The eatching of said pull is assisted by its own weight, and is renderedstill more perfect by a .downward pressure of the hand,

'when pushing the said pull back to place the notch behind the frontplate.

Fig. 2 is a side view of said flush cup; Figs. 3 and 4, flush cup orhandle, with the thumb-tumbler and T-handle Gr; Fig. 5, end view oflock-case; Fig. 6, end view of latchcase; Fig. 7, side view of the lock;Fig. 8, the latch supported by-spring H, and operated by handle G G,Figs. 4 and 8. Fig. 7, E the lock or bolt held by and working on thepost in slot I by a key. Levers F F are held and operated, in the commonway, by a key.

I claim as my invention- The sliding pull A, provided with a shouldernear its lower front end, for engaging with the face-plate when forcedinto the case, in combination with the spring K, for throwing the pulloutward when released from its engagement, substantially as described.

W. 0. ROGERS.

Witnesses E. R. PAUL, A. M. STONE.

